2938761

素因数分解:

$3^4\times 7^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:163

約数の個数: 40

約数和(自身を含む): 5157504

約数和(自身を除く): 2218743

約数列:

[1, 3, 7, 9, 21, 27, 63, 71, 73, 81, 189, 213, 219, 497, 511, 567, 639, 657, 1491, 1533, 1917, 1971, 4473, 4599, 5183, 5751, 5913, 13419, 13797, 15549, 36281, 40257, 41391, 46647, 108843, 139941, 326529, 419823, 979587, 2938761]

約数ペア:

[(1, 2938761), (3, 979587), (7, 419823), (9, 326529), (21, 139941), (27, 108843), (63, 46647), (71, 41391), (73, 40257), (81, 36281), (189, 15549), (213, 13797), (219, 13419), (497, 5913), (511, 5751), (567, 5183), (639, 4599), (657, 4473), (1491, 1971), (1533, 1917)]